MS 172 contains two works. The first is Martin Bucer's critique of the 1549 Book of Common Prayer. Martin Bucer (1491-1551) was a reformation theologian from Alsace and a prominent figure in the English reformation, becoming Regius Professor of Divinity at the University of Cambridge late in 1549. MS 172 also contains a discussion of predestination by John Skip (d. 1552), who served as Queen Anne Boleyn's almoner and as the bishop of Hereford.